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HJ 25.2-2014 English PDF

HJ 25.2-2014_English: PDF (HJ25.2-2014)
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HJ 25.2-2014English639 Add to Cart 4 days [Need to translate] Technical guidelines for environmental site monitoring Obsolete HJ 25.2-2014
HJ 25.2-2019English369 Add to Cart 4 days [Need to translate] Technical guidelines for monitoring during risk control and remediation of soil contamination of land for construction Valid HJ 25.2-2019


BASIC DATA
Standard ID HJ 25.2-2014 (HJ25.2-2014)
Description (Translated English) Technical guidelines for environmental site monitoring
Sector / Industry Environmental Protection Industry Standard
Classification of Chinese Standard Z10
Word Count Estimation 16,175
Date of Issue 2014/2/19
Date of Implementation 2014/7/1
Older Standard (superseded by this standard) HJ/T 25-1999
Quoted Standard GB 3095; GB 5085.1; GB 5085.2; GB 5085.3; GB 5085.4; GB 5085.5; GB 5085.6; GB 5085.7; GB 14554; GB 50021; HJ/T 20; HJ/T 91; HJ/T 164; HJ/T 166; HJ/T 194; HJ/T 298; HJ 493; HJ 25.1; HJ 25.3; HJ 25.4
Drafting Organization Shanghai Academy of Environmental Sciences; Shenyang Institute of Environmental Sciences; Standards Institute for Environmental; Environmental Protection Research Institute of Light Industry; Nanjing Institute of Environmental Sciences Department of Envir
Administrative Organization Ministry of Environmental Protection
Regulation (derived from) Ministry of Environmental Protection Notice No. 14 of 2014
Issuing agency(ies) Ministry of Environmental Protection
Summary This standard specifies the principles of site environmental monitoring program, work content and technical requirements. This standard applies to site environmental investigation, environmental monitoring, risk assessment, and soil remediation of contami

Standards related to: HJ 25.2-2014

HJ 25.2-2014
Technical guidelines for environmental site monitoring
People's Republic of China National Environmental Protection Standards
Replacing HJ/T 25-1999
Issued on.2014-02-19
2014-07-01 implementation
Issued by the Ministry of Environmental Protection
Table of Contents
Preface ..II
1. Scope ..1
2 Normative references ..1
3 Terms and Definitions .1
4 basic principles, work content and work procedures .2
5 2 monitoring plan development
6 Monitoring Spot Location 4
7 sample collection ..8
8 Sample Analysis 10
9 Quality control and quality assurance .10
10 monitoring reports prepared .11
Foreword
To implement the "People's Republic of China Environmental Protection Law", to protect the ecological environment, safeguarding human health, strengthening of contaminated sites
To environmental supervision and management, regulate space environmental monitoring, development of this standard.
This standard and contaminated sites belong to the following standard series of environmental standards.
"Technical Guidelines for Environmental Site Investigation" (HJ 25.1-2014);
"Contaminated Sites Risk Assessment Guidelines" (HJ 25.3-2014);
"Contaminated site soil remediation technology Guidelines" (HJ 25.4-2014).
From the date of implementation of the above standards, "Soil Environmental Quality Industrial Risk Evaluation Criteria" (HJ/T 25-1999)
Abolished.
This standard specifies the principles of site environmental monitoring program, work content and technical requirements.
This standard is developed by the Ministry of Environmental Protection Science, Technology organization.
Drafting of this standard. Shenyang Academy of Environmental Sciences, Ministry of Environmental Protection Standards Institute, ring light
Habitat Conservation Institute, Nanjing Institute of Environmental Sciences Department of Environmental Protection, Shanghai Academy of Environmental Sciences.
This standard MEP February 19, 2014 for approval.
This standard from July 1, 2014 implementation.
The standard explanation by the Ministry of Environmental Protection.
Site Environmental Monitoring Technology Guide
1 Scope
This standard specifies the principles of site environmental monitoring program, work content and technical requirements.
This standard applies to environmental site investigation, risk assessment, and soil remediation of contaminated sites environmental engineering supervision, engineering
Acceptance of environmental monitoring, retrospective assessment process.
This standard does not apply to radioactive sites and pathogenic biological pollution monitoring.
2 Normative references
The standard content of the following documents cited in the articles. For undated references, the effective version applies
To this standard.
GB 3095 Ambient Air Quality Standard
GB 5085 Identification standard for hazardous wastes
GB 14554 standard malodorous emissions
Geotechnical engineering exploration standard GB 50021
HJ/T 20 industrial solid waste sampling sample preparation Technical Specifications
HJ/T 91 surface water and wastewater monitoring technical specifications
HJ/T 164 groundwater environmental monitoring technical specifications
HJ/T 166 soil environmental monitoring technical specifications
HJ/T 194 ambient air quality monitoring technical specifications manual
HJ/T 298 Identification of Hazardous Waste Technical Specifications
Conservation and management of technical regulations HJ 493 water quality samples
HJ 25.1 Environmental Site Investigation Technical Guidelines
HJ 25.3 Contaminated Sites Risk Assessment Guidelines
HJ 25.4 contaminated site soil remediation guidelines
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1 site site
The total land within a certain range of soil, groundwater, surface water and land within all structures, facilities and biological
and.
3.2 contaminated sites contaminated site
After potentially contaminated sites for investigation and risk assessment, confirm over pollution hazard to human health or ecological environment can be accessed
Subject to the level of risk sites, also known as land contamination.
3.3 Follow pollutant contaminant of concern
According to the views of stakeholders contaminated sites and site characteristics of interest to determine the need for investigation and risk assessment of pollutants.
3.4 mixed soil sample soil mixture sample
Refers to the surface layer of soil or with soil samples by mixing after the composition of mixed samples of the sampling points should be 5 to 20.
4 basic principles, work content and work procedures
4.1 Basic Principles
4.1.1 Targeted principle
Environmental monitoring of contaminated sites should be assessed for environmental investigation and risk management repair, inspection and engineering assessment Retrospective
The various stages of the purpose and requirements to carry out environmental management to ensure monitoring results representation, accuracy and timeliness, the venue for the ring
Provide the basis for environmental management.
4.1.2 normative principles
The basic principle of procedural and systematic manner regulate environmental monitoring contaminated sites should follow, working procedures and working
Methods to ensure that contaminated sites, environmental monitoring and scientific objectivity.
4.1.3 Feasibility principle
Contaminated sites at various stages to meet the environmental investigation and risk assessment, control repair, engineering and inspection retrospective assessment supervisor
Measured under the conditions required, considering the cost of monitoring, the level of technology and other factors to ensure that monitoring is practicable
And successfully carry out follow-up work.
4.2 The content
4.2.1 Environmental Site Investigation and Monitoring
Environmental site investigation and risk assessment process of environmental monitoring, the main work is the use of monitoring tools to identify soil, ground
Water, surface water, ambient air, the residual waste concerns pollutants and the hydrogeological characteristics, and comprehensive analysis, indeed
Types of pollutants given site, the degree of contamination and pollution range.
4.2.2 Contaminated Sites Rehabilitation Monitoring Control
Contaminated site remediation process control of environmental monitoring, the main work for the implementation of control measures for remediation
Effect undertaken related monitoring, including engineering quality monitoring and control of secondary pollutants involved in the repair process of environmental protection
Monitoring of emissions.
4.2.3 Monitoring contaminated site remediation project acceptance
Environmental monitoring contaminated sites treatment after repair work is completed, the main job is to field assessment and evaluation of governance after restoration
To determine whether the relevant requirements have been the target of repair and design of the proposed project.
A retrospective assessment of contaminated sites 4.2.4 Monitoring
After treatment of contaminated sites restoration project acceptance, within a specific time frame for the evaluation of governance after the repair site
Environmental monitoring of groundwater, surface water and environmental impact of the ambient air carried out, but also includes the site for the long-term in situ
Treatment effects of measures to carry out repair work for environmental monitoring of verification.
4.3 work program
Contaminated sites, environmental monitoring program includes monitoring the work content determining, monitoring plan development, implementation and monitoring of prison
Measurement reporting. Monitoring content is determined after monitoring started to determine the specific content of the work in accordance with the requirements of 4.2; monitoring plan
Including the development of data collection and analysis to determine the scope of monitoring, media monitoring process, monitoring and project monitoring organizations; monitoring
Measuring implementation including monitoring point layout, sample collection and sample analysis process.
5 monitoring plan development
5.1 Data collection and analysis
According to the findings of the site environment, taking into account the treatment of contaminated sites restoration monitoring, engineering acceptance monitoring, Retrospective Review
Assessment monitoring purposes and requirements of each stage, to determine the contaminated sites information should be collected for each phase of the monitoring work, including site
Environmental information and the various stages of the investigation phase obtained by monitoring the supplementary information collected.
5.2 Monitoring range
5.2.1 Environmental Site Investigation and Monitoring in the range of preliminary environmental survey to determine the initial site boundaries.
5.2.2 Contaminated Sites Rehabilitation Monitoring governance should include restoration project design management determined the scope of site remediation, as well as
Governance repair regional waste water, waste gas and waste residue impacts.
Consistent range 5.2.3 site remediation project acceptance range should be monitored and treatment of contaminated sites restoration.
5.2.4 contaminated sites retrospective assessment of the scope of monitoring should include the possibility of groundwater, surface water and ambient air environment produced Movies
Range sound, as well as regional site repair work may affect the long-term treatment of.
5.3 Monitoring objects
Mainly for monitoring soil, it should also include groundwater, surface water and ambient air, if necessary.
5.3.1 Soil
Specific division of soil depth within the site including surface soil and deep soil, surface soil and deep soil should be based on
Site Environmental findings OK. Site present in the hardened layer or layers are generally available as backfill topsoil.
5.3.2 Groundwater
Groundwater or groundwater mainly by underground site to site within the boundaries of shallow groundwater runoff downstream collection area. in
Serious pollution and geological structure of the area is conducive to migration of contaminants into deep soil, then the deep groundwater monitoring.
5.3.3 Surface Water
Surface water flows within the site boundary or surface water collection for contaminated sites should also be considered heavy flows through field
Surface Water downstream collection area.
5.3.4 Ambient Air
Ambient air refers to the air space under air and contaminated sites regional centers winds major environmental sensitive points.
5.3.5 residual waste
Environmental site investigation of the object in space should be considered residual waste, including the venue legacy of the original production
Material, industrial waste, waste chemicals and contaminants remaining in the abandoned facilities, vessels and piping in solid, semi-solid
And a liquid substance, other local soil characteristics significantly different solid substances.
5.3.6 Governance repair site should also include monitoring of target substances control the repair process emissions, such as emissions, waste water and waste
Wait.
5.4 Monitoring Project
5.4.1 Environmental Site Investigation and Monitoring Project
5.4.1.1 Environmental Site Investigation Preliminary sampling and monitoring program should work plan based on preliminary environmental investigation stage and conclusions at this stage
Determined in accordance with the specific requirements HJ 25.1 OK. Hazardous waste may be involved in monitoring the project should refer to the GB 5085
Related indicators OK.
5.4.1.2 Environmental Site Investigation detailed sampling and monitoring of pollutants include site characterization and site environmental investigation to determine the characteristics of the reference
Number shall be determined by HJ 25.1 requirements.
5.4.2 restoration of contaminated sites management, project acceptance and retrospective assessment Monitoring Project
5.4.2.1 Soil monitoring program to determine the risk assessment of the indicators of governance need repair. Groundwater, surface water and the environment
Air monitoring program should be determined in accordance with the technical requirements of governance repair.
5.4.2.2 Monitoring Project site treatment should be considered contaminants that might arise during the repair, it should be based on site specific rule
Repair processing technology required to determine, see HJ 25.4 relevant requirements.
5.5 Monitoring Work organization
5.5.1 Monitoring of division
Monitoring division generally include information collected to monitor the planning, monitoring sites layout, sample collection and
Site analysis, laboratory sample analysis, data processing, monitoring, reporting. Undertakers organization should be based on monitoring tasks
The division of responsibilities and a good unit internal cooperation between units.
5.5.2 Monitoring of preparation
Prepare monitoring generally include personnel division, finishing the collection of information, preparation of work plans, personal protective quasi
Equipment, site reconnaissance, sampling equipment and containers and analytical instruments preparation.
5.5.3 monitoring the implementation of
Monitoring the implementation of the work includes monitoring sites layout, sample collection, sample analysis, and subsequent data processing
And reporting. Under normal circumstances, the core of monitoring the implementation of the sampling distribution, and therefore should be taken to implement the distribution site
Kind of related working conditions. In the sample collection, preparation, transportation and analysis process, it should take the necessary technical and management
Measures to ensure the security monitoring personnel.
6 Monitoring Spot Location
6.1 Monitoring Spot Location Method
6.1.1 Layout method of soil monitoring sites
According to the site environmental survey location, site boundary and each phase of the conclusions identified requirements, determine the distribution
range. Area marked map or plans in the exact location, rendering the site boundary, and the boundary corner into the field
Row accurate positioning. Contaminated soil at the site environmental monitoring common monitoring points layout system comprising a random distribution method, system
Distribution method and area distribution method, see Figure 1.
Figure 1 monitoring sites schematic layout method
Regional 6.1.1.1 venue for similar soil characteristics, the same land-use functions, the system can be random distribution method
Layout of monitoring sites.
1) systematic random distribution method is to monitor the area is divided into several equal area of land from which random (random number obtained
You can take advantage of craps, lottery, check the random number table method) set aside a certain amount of land, a plot layout within each
Monitoring sites.
2) To determine the number of samples drawn according to the area, and space usage monitoring purposes.
6.1.1.2 The soil contaminated site characterization is not clear or serious damage to the site of the original condition, the system can be used to monitor distribution method
Spot Location. System distribution method is to monitor the area is divided into several plots of equal area, laid a monitor within each parcel
Point.
6.1.1.3 venue for different land use and pollution characteristics significantly different function venues, can be partitioned distribution method
Layout of monitoring sites.
Systematic random distribution method distribution system partition law distribution law
1) partition distribution method is to divide the site into different cells, and then determine the distribution based on the area of a cell or pollution characteristics
method.
2) division of land use within the site features are generally divided into the production area, office area, living area. In principle, the production area to
Block division should structure or production process as a unit, including the workshop, materials and product depot, wastewater treatment and waste
Slag storage site, the venue of material flow path, underground storage structures and pipelines. Office space including office buildings, squares,
Roads, green space, living area including canteens, dormitories and public buildings.
3) For land-use functions similar unit smaller production areas can also merge several cells into a monitoring site
Piece.
6.1.1.4 Control of soil monitoring sites in the layout method
1) Under normal circumstances, it should be set to control soil monitoring sites in the area outside the venue.
2) Control monitoring sites can be selected in four vertical axial field outside the region, in each direction equal pitches laid 3
Sampling points, respectively, sampling and analysis. As a result of topography, land use patterns, pollutant dispersion characteristics due to migration
When the prime cause soil characteristics significantly different sampling conditions or restrictions, monitoring points can be adjusted according to the actual situation.
3) Control monitoring sites should be selected within a certain period of time without external disturbance bare soil, surface soil should be collected
Sample, sample depth and sampling site as the surface soil at the same depth. If necessary, should also be collected deep soil samples.
6.1.2 Method of Laying groundwater monitoring sites
If the venue groundwater contamination should be suspected serious regional distribution, taking in the sites of groundwater runoff
Downstream distribution. Such as the need to understand the characteristics of contaminated sites by monitoring groundwater, within a certain distance of groundwater runoff
Catchment area downstream distribution.
6.1.3 Surface water monitoring points layout method
If there is surface water flowing or pooled venue, in the region suspected of serious pollution of surface water distribution, at the same time test
Consider the downstream distribution of surface water runoff.
6.1.4 Ambient Air Monitoring Spot Location Method
In the space center and the venue was downwind of major environmental sensitive points distribution. For sites that exist in the production workshop, the original
Pollution is concentrated area of material or waste storage site, should distribution in these regions; for organic pollution, odor pollution
Dyeing, mercury pollution and other types of sites, suspected to be in serious pollution area distribution.
6.1.5 residual waste within the site layout method of monitoring sites
In the suspected hazardous waste and residual waste area where the suspicious substances and soil characteristics significantly different local feed
Line distribution.
Layout 6.2 Environmental Site Investigation of monitoring sites
6.2.1 Layout of soil monitoring sites
6.2.1.1 Environmental Site Investigation Preliminary sampling of monitoring points layout
1) You can use functions and features based on original contamination site, select a number of possible serious pollution of land, soil contamination as
It was recognized monitoring plots. In principle, monitoring sites should be selected plots central or significant contamination of the site, such as the production car
Room sewage pipelines, waste dumps and the like.
2) For a more uniform contaminated sites (including types of pollutants and pollution) and topography severely damaged site (package
Including demolition destruction, destruction of historical change), the system can use the random distribution method according to the shape of the site, in each parcel
Center sampling.
3) the number of monitoring sites and sampling depth should be based on the area, the type of contamination and the use of different functional areas and so on survey
Conclusion OK.
4) For each monitoring plots, surface soil and deep vertical soil level classification should be considered contaminants move
OK Move situation, structures and pipelines damaged, the soil characteristics and other factors. Surface sampling depth should be deducted from the non-hardened soil
Layer thickness, it is recommended within 3m deep soil sampling interval on the principle 0.5m, 3m ~ 6m sampling interval of 1m, 6m to
Groundwater sampling interval is 2m, specific interval may be adjusted according to the actual situation.
5) In general, deep soil sampling depth should be determined, according to the site environment and the findings of the largest site conditions
Depth should be up to the depth of unspoiled so far.
6.2.1.2 Environmental Site Investigation detailed sampling layout of monitoring points
1) For a more uniform contaminated sites (including types of pollutants and pollution) and topography severely damaged site (package
Including demolition destruction, destruction of historical change), the system can be used to monitor land distribution law division, the center of each parcel
sampling.
2) If there is function or feature contaminated sites in different regions of significant differences, the original can be obtained according to the Environmental Investigation
Functions and characteristics of pollution information distribution method using partition divided the monitoring plots sampled in the center of each plot.
3) a single monitor land area can be determined based on the actual situation, in principle, should be more than 1600m2. For area than
Small venue, not less than five monitoring plots. Sampling depth should be a preliminary environmental survey to determine the maximum depth of sampling and monitoring
, Depth interval see 6.2.1.1 relevant requirements.
4) To collect samples of soil mix, according to the monitoring of each parcel of land area and the degree of pollution, will be divided into 1-9
Equal area of a grid, each grid center ......
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